Davies said that a twist in the 1998 Jonathan Creek episode 'The Problem at Gallows Gate' revealed a potential explanation for how Benedict Cumberbatch's Sherlock survived his leap off the top of a building onto a concrete pavement.

"I know how he got away with it, but I'm not telling you," said the actor. "We did a similar thing in Jonathan Creek when someone jumped off a roof at a party - that's all I'm saying."

In 'The Problem at Gallows Gate', a character faked their death using accomplices and a grass-covered trapdoor with a net underneath.

Explaining how it happened in the episode, Davies's character Creek said: "Everyone saw him but nobody saw him land. There was a gap of maybe seven or eight seconds, which is when they did the clever bit.

"He needed at least two accomplices: one up top, one below. Leaping off a second floor balcony's no big deal if there's something to catch you at the bottom - if you've dug yourself a big hole with a tightly-sprung net inside, [and] rigged up a camouflage frame covered in turf which slides across."